Jyeshtha

Jyeshtha is the eighteenth nakshatra, from 226 degrees 40 minutes to 240 degrees of the sidereal zodiac in Scorpio, and its star is the red Antares, the scorpion's heart. Its Vimshottari ruler is Mercury, its presiding deity is Indra, king of the gods, and its symbol is an earring or a protective umbrella. The name means the eldest or the senior. Jyotisha reads Jyeshtha through seniority, authority, and the responsibility and isolation that come with rank, Indra's kingship, hard-won and guarded, and classes it as Rakshasa gana. The umbrella marks protection and status. It is treated as an intense mansion carrying the weight of eldership. These are traditional readings laid over Antares, the first-magnitude red star Indian astronomy places at the scorpion's heart.

Jyeshtha's padas run through Aries, Taurus, Gemini and Cancer. Indra's kingship in Vedic myth is repeatedly won and threatened rather than simply inherited, most famously nearly lost to the demon Vritra before being restored, and Jyeshtha's reading of authority as hard-won and precariously guarded, rather than comfortably possessed, follows this specific mythic character of Indra rather than kingship in the abstract. Antares and Aldebaran, the stars marking Jyeshtha and Rohini respectively, sit almost exactly opposite one another across the sky, and this near-perfect opposition between the mansion of hard-won seniority and the mansion the Moon is said to love best is sometimes noted by jyotishis as one of several structural symmetries built into the twenty-seven-fold scheme, whether by original design or later interpretive convenience is not established.

A nakshatra spans thirteen degrees twenty minutes, which is a wide gate. The four padas that quarter it are what make the division precise enough to be worked with. Jyeshtha runs from 226 degrees 40 minutes to 240 degrees 00 minutes of the sidereal circle, and its four padas are three degrees twenty minutes each: the first from 16 degrees 40 minutes of Scorpio, the second from 20 degrees 00 minutes of Scorpio, the third from 23 degrees 20 minutes of Scorpio and the fourth from 26 degrees 40 minutes of Scorpio. The Moon crosses a single pada in roughly six hours, so a birth an afternoon apart can fall in two of them.

The arithmetic hides a coincidence that is not one. Twenty seven nakshatras of four padas make one hundred and eight divisions of the zodiac, and the navamsha, the ninth-part chart that jyotisha treats as the most important of all the divisional charts, also cuts the circle into one hundred and eight. They are the same cut. A pada is a navamsha, and naming the pada names the navamsha sign without any further calculation. The four padas of Jyeshtha fall in Sagittarius, Capricorn, Aquarius and Pisces in that order.

Two cautions attach to those degrees. They are sidereal, measured from a fixed point among the stars rather than from the equinox, so they depend on the ayanamsha chosen to locate that point; the Lahiri, Raman and Krishnamurti values differ by up to about a degree, which is a fifth of a pada and enough to move a chart across a boundary. And the equal arcs are a scheme laid over the sky rather than a description of it: the star the nakshatra is named for sits somewhere inside its arc rather than filling it, and for several nakshatras that identification is itself disputed.